本文在分析服务业外商直接投资技术效应作用机制的基础上，基于DEA-Malmquist指数方法测算出广东1985～2010年服务业全要素生产率指数、技术进步指数和技术效率指数，并分别以三者作为被解释变量实证考察服务业外商直接投资的技术效应。结果表明：总体上看，服务业外商直接投资存在显著的技术效应，但这种技术效应主要是通过促进技术进步进而提高全要素生产率实现的，技术效率效应并不显著，技术效率改进的驱动力似乎更多地来自于国内因素。另外，服务业外商直接投资技术效应的发挥存在一定“技术门槛效应”和“适应期效应”，只有越过技术门槛和适应期，外商直接投资的技术效应才能完全显现。
This paper analyzes the mechanism of technology effect of foreign direct investment in Services. Based on DEA-Malmquist index method，this paper measures total factor productivity index，technological progress index and technological efficiency index of service industry in Guangdong between the years 1985-2010. Using the above three indexes as explained variables，we make an empirical research on technology effect of foreign direct investment in services. The results show that foreign direct investment in services has significant technology effect，and this technology effect is exerted mainly by promoting technology progress and improving total factor productivity. However，technological efficiency effect is not significant，and it seems that the driving force of technological efficiency improvement comes from domestic factors. Moreover，there exists “Technical threshold effect” and “Adaptation effect”. Only when domestic service enterprises cross the technical threshold and adaptive phase，technology effect of foreign direct investment could be completely revealed.
